/*
 * Copyright (C) 2010-2018 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
 */
package org.evosuite.dse;

import java.util.LinkedList;
import java.util.ListIterator;

/*
    This class is taken and adapted from the DSC tool developed by Christoph Csallner.
    Link at :
    http://ranger.uta.edu/~csallner/dsc/index.html
 */

/**
 * Linked list of Strings
 *
 * @author csallner@uta.edu (Christoph Csallner)
 */
public class LinkedStringList extends LinkedList<String> {


    private static final long serialVersionUID = 5757225099467215983L;

    /**
     * Constructor
     */
    public LinkedStringList(String... args) {
        for (String arg : args)
            add(arg.trim());  // remove outer white-spaces
    }

    /**
     * Constructor
     * <p>
     * Parse arg as comma separated string list. For example:
     * "a, b b, c" --> {"a", "b b", "c"}
     */
    public LinkedStringList(String arg) {
        this(arg.split(","));
    }

    /**
     * Comma separated list, e.g.: foo,bar bar,baz
     */
    @Override
    public String toString() {
        StringBuffer sb = new StringBuffer();
        ListIterator<String> it = listIterator();
        while (it.hasNext()) {
            sb.append(it.next());
            if (it.hasNext())
                sb.append(", ");
        }
        return sb.toString();
    }
}